Steam-exhaust nozzle.



F. MERTSHEIMER.

STEAM EXHAUST NOZZLE.

APPLICATION FILED M'AR. I9. |915.

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COLUMBIA PLANQLIRAPH co..wAsH|N1-0N, DA c.

F. IVIERTSHEIIVIER.

STEAM EXHAUST NozzLE.

APPLICATION FILED MAR. I9. |915.

1,155,362. Patented oct. 5, 1915.

2 SHEETS-SHEET 2.

WITH@ STATES PATENT FFIE.,`

Y FREDERICK MERTSI-IEIIVIER, 0F KANSAS CITY, MISSOURI.

STEAM-EXHAUST NOZZLE.

Application led March 19, 1915.

To all whom t may concern:

Be it known that I, FREDERICK Minus immuun, a citizen of the UnitedStates, re-r siding at Kansas City, in the county of Jackson and Stateof Missouri, have invented certain new and useful Improvements 1nSteam-Exhaust Nozzles; and I do declare the following to be a full,clear, and rexact description of the invention, such as ywill enableothers skilled in the art to which it appertains to make and use thesame, reference being had to thelaccompanying drawings, andto theletters and figures of'reference marked thereon, which form a part ofthis specification. f

My invention relates to steam exhaustJ nozzles, and more particularly tonozzle tips in use in locomotive or other steam engines wherein steam isused to create a'draft; the principal object of the invention being toprovide a nozzle* with an adjustable tip and means for operating orregulating the tip from the engine cab, wherebythe fireman may secure adesired blast through the grates.

In accomplishing this object I have pro vided improved details ofstructure, the preferred forms of which are illustrated in theaccompanying drawings, wherein Figure I is a perspective View of anadjustable nozzle tip constructed according to my invention. Fig. II isafrontview of the device and a portion of the smoke arch, showing one ofthe operating rods extending through the arch. Fig. III is a side viewof the nozzle showing the operating rod and its mounting on the enginecab. Fig. IV; is a plan View of the nozzle tip.

Referring more in 'detail to the draw-y ings 1 designates the upperportion of an exhaust nozzle of the type used in the ordinarylocomotive, and which is located in the smoke arch directly below thestack (not shown) and adapted for directing a column of exhaust steamthrough the stack to create a partial vacuum throughy the arch andproduce a forced draft through the fire.

Formed integrally with and extending laterally from the nozzle is anannular fiange 2, and seatedkon said flange is a nozzle tip 3 comprisinga slightly tapered cylindrical portion 4 conforming iny size with theupper portion of the nozzle l, and having side lugs 5 provided withapertures for receiving bolts 6 whereby the tip is secured l to theflange 2.

f Projecting laterally from opposite sides of Specification of LettersPatent.

Patented Oct.v 5, 1915.

seriai No. 15,562. f

the tip 3 and formed integrally therewith are wings 7 which extendthroughout the height of the tip and have longitudinal grooves thereinopening through the outer edges and both ends of the wings to provideguides or slideways 8 for the posts 9, which are adapted for free traveltherein; each of Lthe posts 9 being beveled outwardly from its lowerinner corner in order to forma wedge face that will force cinders, orthe like, that may accumulate in the bottom of the wing sockets orguideways 8, outwardly from the guideways and keep the latter clear toprevent the cindersfroin interferring with the full vertical travel ofthe posts. Each of the posts 9 is also provided with grooves 10 in itsside faces and the grooves extend throughout the length of the post toprovide channels through which fine cinders or dust that may accumulateat the bottom of the socket, within which the post is movh able, may bedrawn out by the forced draft in the nozzle to clean the socket andscour the same to insure free vertical movement of the post.

The posts 9, which are arranged at diametrically opposite sides of thenozzle tip, are connected by and support a bridge 11, which extendsacross the tip opening to divide the steam blast, andis turneddownwardly and formed into a stepped blade 13-15. The 'center portion 13has a downwardly'directed knife edge 14, and portions l5, at the ends ofthe center portion, are also provided with downwardly directed knifeedges, inorder to divide and spread the steam blast, and increase thedrawing force thereof according to the depression of the bridge.v IVhenthe bridge l1 is in its lowermost position it will be supported by itsend edges 16 resting on the top of the nozzle tip; it being apparentthat when the bridge is in its lowerinost position, the knife bladeswill divide theblast within the tip to increase the draft to a maximumand thereby effectuallv tear and stir up the fire when feeding with `badcoal, or when the ire shows signs of getting dirty, clinkering. etc.,and it is also apparent that the draft may be regulated bv elevating thebridge to different points for securing the desired draft, andy collars22 which anchor the shaft against longitudinal movement while notinterfering with lrotary movement thereof, and also fixed to the shaftoutwardlyfrom the collars 22 and preferably bythe set screws 23, are thehubs Qfeof arms 25, whichr latter extend across the sockets in the'wings 3 and have slots 26 therein through which pins 27, that arerigidly mounted on the posts 9 and eX- tend outwardly through theksockets 3, prof ject loosely so that the Vslotted arms may slide overthe pins. y l

The slot 26 in each of the arms 25 is beveled outwardly at its ends inorder to'form free outlets for cinders that may accumulate within theslot, and thereby prevent stoppage of the slot that might interfere withthe full travel of thel arm over its pin and limit the vertical.adjustment of the bridge.

The arm 20 at the outer end of the shaft 1S projectsbetween spaced stops29 that are mounted on and project from the side of the smoke arch inorder to limit the movement of the arm and relieve the lever and bridgemechanism from strain.

Pivotally connected with the outer end of the arm is a rod 30 which isformed insections and provided with adjusting sleeves 31 whereby thelength of the rod may be varied to regulate the lift of thebridgewhenmoved by the rod handle 32 which isconnected with the outer end ofthe rod.

The handle 32 comprises a latch bar member 33, which extends through aguide bracket 34 having an upwardly projecting latch tooth 35 thereonadapted for projection into the notches 36 in the lower edge of the bar,so that the bar and rod may be held in an adjusted position to retainthe bridge at a proper elevation relative to the nozzle ti pThe bracket34 preferably comprises an arm 37` which is mounted on and projects fromthe .smoke arch and has the tooth 35 formed integrally therewith; theguide part 38 comprising a U-shaped rod, which is mounted on the bracketand projects above the tooth, as illustrated.

j In using my improvement, presuming the parts to be constructed andassembled as described, should the lire clinker or choke becausevof badcoal or otherwise, the bridge may be lowered into the nozzle tip bymanipulation of the latch rod from theengine cab, so that the blast isdivided and Vrestricted in the nozzle to ei'ect a stronger pully throughthe grates and fire that will tend to clean the fire; the strength ofthe pull being regulated lby position of the bridge and the latchmechanism being so arranged that .whenV the latch is at one Y positionthe bridge will be at its lowest point and when at other positions atother predetei-mined points in the nozzle, so that the fireman candetermine the effect of the blast by the position of the latch; it beingapparent that when the bridge is at its lowest point a wide diversionofthe exhaust steam is efected, which causes the stack to be entirelyllled with the escapingl steam and produces considerable vacuum in thesmoke arch that causes asharp blast jon the fire; and that-ateachsuccessive higher step of the bridge the steam is diverted .or chokedrto a lesser ,degree until when'the bridge iseleA- vated to its highestpoint, a full opening ofthe nozzle is provided that producesnoradditional vacuum in the smoke arch because Vofthe presence of thebridge.

Having thus described 4my invention, what' I claim as new therein anddesire to secure by Letters-Patent, is :fl' 1. The combination with, anexhaust nozzle, of a bridge crossing saidrnozzle and comprising bladesarranged in vertically stepped relation, and means for raising orlowering the bridge.

2. Thecombination with an exhaust nozzle, of movable bridge supports atopposite sides of the nozzle, a bridge carried by said supports andcomprisingvblades arranged in stepped relation across the nozzle, andmeans for raising or lowering the bridge. y

3. The combination withA an exhaust nozzle, of a bridge comprising aplurality of tive to the nozzle. Y

5. Thev combination with a nozzle, of posts slidably mounted at oppositesides of the nozzle and adapted for longitudinal movementrrelativethereto,- abridge eXtend-r ing across the nozzle and mounted on saidposts, said bridge comprising a suspended blade 'having its ends set infrom the posts to form a seat for the bridge on the edge ofV the nozzle,asecond blade suspended Vfrom and set in from the ends of the firstblade,-

and means for actuating the posts tojvary the projection of the bladesinto and-fromV the nozzle. n f Y 6. The combination with a nozzle havingoutwardly-opening` vertical grooves in its outer face, posts Vslidablymounted ,in said gro-oves and having beveled lower ends, a bridgecarried by said posts, and means for raising and lowering the bridge.

7. rThe combination with a nozzle having outwardly-opening, verticalgrooves in its outer face, posts slidably mounted in said grooves andhaving outwardly and upwardly beveled lower ends, a bridge carried bysaid posts, and means for raising and lowering the bridge.

8. The combination with a nozzle having grooves in its outer face, ofposts slidably mounted in ysaid grooves and having longitudinal groovesin their side faces, forming cleaning channels in the nozzle grooves, abridge carried by said posts, and means for shifting the bridge, for thepurpose set forth. Y

9. The combination with a nozzle having longitudinal wings provided withoutwardly opening grooves, posts slidably mounted in said grooves andhaving longitudinal grooves on their sides facing the sides of thewings, a bridge carried by said posts, and means for actuating theposts.

10. The combination with a nozzle having a pair of opposite`longitudinal grooves in its exterior faces, posts slidably mounted inthe grooves and having longitudinal grooves in their side'faces, andhaving out- -wardlv and upwardly inclined lower ends, a bridge carriedby the posts and extending across the nozzle, and means for actuatingthe posts to vary the elevation of the bridge relative to the nozzle.

l1. The combination with a nozzle hav-y their side faces, and havingoutwardly and upwardly inclined lower ends, al bridge carried by theposts and extending across the nozzle, cross pins mounted on the postsand projecting through Vsaid wing grooves, an

vactuating shaft and slotted arms fixed on the shaft and operativelyconnected with the pins, means for actuating said shaft, and means foractuating said posts to vary the elevation of the bridge relative to thenozzle.

12. The combination with a nozzle having wings on opposite sides thereofprovided with outwardly opening grooves, of posts slidably mounted inthe wing grooves, a bridge carried by said posts, a rotatable shaft,arms carried by said shaft and each having a slot in its free endadjacent the wing grooves; the said slot being beveled outwardly to forma flared mouth; pins fixed to the posts and projected through the winggrooves and arm slots, and means for actuating the shaft.

In testimony whereof I affix my signature.

FREDERICK MERTSHEIMER.

Copies of this patent may be obtained for ve cents each, by adfressingthe Commissioner of Patents, Washington, D. C.

